28597213630 has 16 divisors (see below), whose sum is σ = 51762557520. Its totient is φ = 11374980352.

The previous prime is 28597213627. The next prime is 28597213639. The reversal of 28597213630 is 3631279582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28597213639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7986259 + ... + 7989838.

It is an arithmetic number, because the mean of its divisors is an integer number (3235159845).

Almost surely, 2^28597213630 is an apocalyptic number.

28597213630 is a deficient number, since it is larger than the sum of its proper divisors (23165343890).

28597213630 is a wasteful number, since it uses less digits than its factorization.

28597213630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15976283.

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 28597213630 in words is "twenty-eight billion, five hundred ninety-seven million, two hundred thirteen thousand, six hundred thirty".